Move spaces from before comments to within comments

tests/language_strong/await_for_test.dart

Index: tests/language_strong/await_for_test.dart
diff --git a/tests/language_strong/await_for_test.dart b/tests/language_strong/await_for_test.dart
index 2777900c34f1603062e1623a4c0908f2963bed13..2de1a9fed39d8658ec6b7b2aca461066afe1ff8a 100644
--- a/tests/language_strong/await_for_test.dart
+++ b/tests/language_strong/await_for_test.dart
@@ -100,7 +100,7 @@ Stream timedCounter(int maxCount) {
     controller.add(counter); // Ask stream to send counter values as event.
     if (counter >= maxCount) {
       timer.cancel();
-      controller.close();    // Ask stream to shut down and tell listeners.
+      controller.close(); //    Ask stream to shut down and tell listeners.
     }
   }